Two-Factor Authentication Password Management Email Security Authentication Methods Multi-Factor Authentication Fraud Prevention Hacking Unauthorized Access Account Takeover Social Engineering Password Protection Phone Number Protection Legacy Non-production Test Tenant Account User Authentication Fraud Digital Identity Two-Step Verification Phishing Protection Credential Theft Expired Domains Privacy Protection Phishing Attacks User Verification WhatsApp Security Social Media Risks Account Recovery Social Media Social Media Hacking Identity Theft Hacked Accounts Credential Stuffing Gmail Security Inactive Accounts Account Takeovers Scams Data Breaches Social Media Security Privacy Settings RIPE NCC Account
The weakness lies in account-ownership checks that accept a username plus an old transaction number.
